[c-nsp] Suggestions wanting: Implementing dual location redundancy

Dennis drockz at gmail.com
Wed May 23 07:52:23 EDT 2007


No... anycast will do proximity routing to the closest server but it will
have no ability to know if the service is up and running... they'll need
load balancing for that... D

On 5/23/07, Garry <gkg at gmx.de> wrote:
>
> Hi,
>
> one of our customers approached us with the following requirement:
>
> They need to set up an FTP server, which needs to be redundant for HA.
> Anyway, the customer would like to have it hosted at seperate locations.
> The tough part is that the client software does not have DNS capability,
> so a fixed IP has to be entered.
>
> The servers would both be hosted inside our network, so no problem
> getting routes anounced via OSPF or similar. The problem is how do I let
> a router (all 7200/12000 series) know that the local service is down at
> one location and that it should rather activate the same subnet at
> another?
>
> Would Anycast allow for service availability discovery?
>
> Tnx, -gg
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